General Information

Model Identification

• Part Number: A06B-6124-H105

• Model: SVM1‑80HVi (αi SV80HV)

• Series: Alpha i (αi)

• Type: Single‑axis high‑voltage servo amplifier (400V AC)

• Manufacturer: FANUC

• Application: CNC machine tools, machining centers, lathes, grinding machines, and automation equipment with medium‑to‑heavy load servo axes.

Electrical Specifications

DC Bus Input (from αi PSM)

• Voltage: 565–679V DC

• Rated Input Power: 5.8kW

• Control Power: External 24V DC ±10% (for logic, FSSB communication, and cooling fan).

AC Output (to Servo Motor)

• Rated Output Voltage: 480V AC (3‑phase)

• Rated Output Current: 18.2A (RMS)

• Peak Current: 80A (peak)

• Output Frequency: Up to 400Hz

• Control Method: Full‑digital vector control (supporting position, speed, and torque modes).

Regenerative Capability

• Supports regenerative braking; regenerated energy is fed back to the DC bus via the αi PSM power supply.

Mechanical & Environmental Parameters

• Construction: Yellow metal housing, vertical panel mount, with an external high‑efficiency heatsink.

• Dimensions (W×H×D): 60mm × 380mm × 272mm

• Weight: 5.0kg (11.02lbs)

• Cooling: Built‑in replaceable axial fan + high‑efficiency heatsink.

• Operating Temperature: 0°C to +55°C (non‑condensing)

• Storage Temperature: ‑20°C to +70°C

• Humidity: 5%–95% RH (non‑condensing)

• Protection Class: IP20 (for cabinet installation).

Compatibility

• Servo Motors: FANUC αi HV series (e.g., αi22/3000HVi, αi30/2500HV).

• Power Supply: αi PSM 400V‑class (e.g., A06B‑6120‑H110).

• CNC Systems: FANUC 30i/31i/32i‑B, 0i‑MF/TF (400V option).

• Communication: FSSB fiber optic bus (100Mbps).

• Feedback: Absolute/incremental encoders (αi pulse coder); built‑in backup capacitor (≈10‑minute hold, no homing required after replacement).

Protection & Alarm Functions

• Overcurrent (AL‑01): Main circuit overload or short circuit.

• DC Bus Undervoltage (AL‑04) / Overvoltage (AL‑07)

• Heatsink Overheat (AL‑03)

• Fan Abnormal (AL‑02)

• Encoder/Feedback Error

• Regenerative Overload

• Front‑panel 7‑segment LED displays real‑time status and alarm codes.

Installation Guidelines

• De‑energize the entire system and perform lockout/tagout before installation.

• Mount vertically on a cabinet plate; ensure ≥50mm clearance top and bottom for ventilation.

• Connect DC bus terminals to αi PSM power supply; ensure reliable protective grounding.

• Wire 24V control power and FSSB fiber cables per FANUC standard pinouts.

• Verify all connections for tightness and correctness before restoring power; clear existing alarms before operation.

Safety Notice

• High voltage present inside; wait ≥10 minutes after power‑off before opening the cover.

• Installation, wiring, and maintenance must be performed by qualified professional electricians.

• Use only genuine FANUC cables and connectors to avoid equipment damage and safety hazards.

• Maintain unobstructed airflow to prevent overheating; clean fan and heat sink dust regularly, replace faulty cooling components promptly.

Key Features

• 5.8kW / 18.2A rated output for medium‑to‑heavy duty servo applications.

• Compact 60mm width saves cabinet space.

• Built‑in absolute encoder backup capacitor eliminates homing after replacement.

• FSSB fiber communication ensures high‑speed, noise‑immune data transfer.

• Low‑loss power devices reduce heat generation and energy consumption.